Page 1
READ THIS MANUAL CAREFULLY! It contains important safety information. LIRE ATTENTIVEMENT CE MANUEL! Il comprend d’importantes informations de sécurité. ¡LEA ESTE MANUAL ATENTAMENTE! Contiene indicaciones importantes acerca de la seguridad. OWNER’S MANUAL MANUEL DU PROPRIÉTAIRE MANUAL DEL PROPIETARIO YFM45KDXL/YFM45KPAL YFM450FWB/YFM450FWBD BB5-F8199-62...
Page 2
Original instructions Notice originale Manual original PRINTED IN USA 2019.03-0.8×1 CR (E,F,S)
Page 3
READ THIS MANUAL CAREFULLY! It contains important safety information. OWNER’S MANUAL YFM45KDXL/YFM45KPAL YFM450FWB/YFM450FWBD WARNING This ATV should not be ridden by anyone under 16 years of age. BB5-F8199-62-E0...
Page 4
Read this manual carefully before operating this vehicle. This manual should stay with this ve- hicle if it is sold. EC Declaration of Conformity conforming to Directive 2006/42/EC We, YAMAHA MOTOR CO., LTD. 2500 Shingai, Iwata, Japan, declare in sole responsibility, that the product YFM450FWBD :B5R1 (5Y4AJ82W0500101–)
Page 5
With the purchase of this Yamaha, you can now appreciate the high degree of craftsmanship and reliability that have made Yamaha a leader in these fields. This manual will provide you with a good basic understanding of the features and operation of this ATV.
Page 6
EBU17331 IMPORTANT MANUAL INFORMATION EBU17344 FAILURE TO FOLLOW THE WARNINGS CONTAINED IN THIS MANUAL CAN RESULT IN SERIOUS IN- JURY OR DEATH. Particularly important information is distinguished in this manual by the following notations: This is the safety alert symbol. It is used to alert you to potential per- sonal injury hazards.
EBU17421 TABLE OF CONTENTS LOCATION OF THE WARNING AND Storage compartment....... 4-19 SPECIFICATION LABELS ......1-1 Front carrier ..........4-20 Rear carrier ..........4-20 SAFETY INFORMATION ........2-1 Front and rear shock absorbers ....4-20 Winch (for Europe) ........4-22 DESCRIPTION..........3-1 Trailer hitch (equipped models) ....4-23 Left view............3-1 Auxiliary DC jack........
Page 9
Operating the drive select lever and Periodic maintenance chart: Emission driving in reverse........6-2 control system .......... 8-3 Engine break-in ........... 6-4 Periodic maintenance chart: General Parking ............6-4 maintenance and lubrication ....8-5 Parking on a slope ........6-5 Removing and installing panels....
Page 10
Checking and lubricating the cables..8-49 SPECIFICATIONS........10-1 Checking and lubricating the front and rear brake levers ........8-49 CONSUMER INFORMATION....... 11-1 Checking and lubricating the brake Identification numbers ......11-1 pedal ............8-50 Checking the wheel hub bearings.....8-50 INDEX ............12-1 Lubricating the drive shaft universal joint ............8-51 Checking the stabilizer bushes ....8-51 Lubricating the rear knuckle pivots...8-52...
Read and understand all of the labels on your ATV. These labels contain important information for safe and proper operation. Never remove any labels from your ATV. If a label becomes difficult to read or comes off, request a re- placement label from your Yamaha dealer.
Page 16
12 BJ5D / BJ5E 12 BB5M YFM450FWB YFM450FWBD 2019 2019 20.0 kW 20.0 kW YAMAHA MOTOR CO., LTD. YAMAHA MOTOR CO., LTD. 301 kg 307 kg 2500 SHINGAI, IWATA, JAPAN 2500 SHINGAI, IWATA, JAPAN BJ5-F155A-30 BB5-F155A-30 12 B5R1 / B5R3...
Page 17
Familiarize yourself with the following pictograms and read the explanatory text, then make sure to check the pictograms that apply to your model. Read the Owner’s manual. NEVER use on paved roads. ALWAYS use an approved helmet and NEVER carry passengers. protective gear.
Page 18
(Weight on the trailer tongue.) Model Name **** ****** Overloading can cause loss of control. *** kW YAMAHA MOTOR CO., LTD. Loss of control can result in severe injury or Max. Power *** kg 2500 SHINGAI, IWATA, JAPAN death.
Page 20
When riding with cargo or towing a trailer : Reduce speed 37S-F151K-00 and allow more room to stop. Avoid hills and rough terrain. Maximum Vehicle Load : 240 kg, (530 lbs) Includes weight of operator, cargo and accessories (and if applicable, trailer tongue weight). YAMAHA B16-F816M-00 1-10...
EBU17432 SAFETY INFORMATION SAFETY INFORMATION Never allow a child under age 16 to operate an EBU27255 ATV without adult supervision, and never allow AN ATV IS NOT A TOY AND CAN BE HAZARD- continued use of an ATV by a child if he or she OUS TO OPERATE.
Page 24
Never operate at speeds too fast for your skills Never operate the ATV on hills too steep for the or the riding conditions. Always go at a speed ATV or for your abilities. Practice on smaller hills that is proper for the terrain, visibility, operating before attempting larger hills.
Page 25
Never operate an ATV in fast flowing water or in technique described in this manual on level ground. Avoid crossing the side of a steep hill if water deeper than that recommended in this possible. manual. Remember that wet brakes may have ...
Page 26
Never maintain an ATV without proper knowl- vehicle. If the vehicle is in safe operating con- edge. Contact an authorized ATV dealer to in- dition and you can safely operate it, restart it form you on basic ATV maintenance. Certain and ride gently back to camp or other known maintenance can only be carried out by certified location where you can receive medical at-...
Page 27
While you may find aftermarket products similar in of the operator and may limit control ability, design and quality to genuine Yamaha accesso- therefore, such accessories are not recom- ries, recognize that some aftermarket accessories mended.
Page 28
Do not run engine in poorly ventilated or par- gerous loss of lights or engine power. Also, the battery tends to discharge more quickly if elec- tially enclosed areas such as barns, garages, trical accessories are added. or carports. ...
EBU17739 INSTRUMENT AND CONTROL FUNCTIONS EBU29913 EBU26699 Main switch Indicator lights and warning lights For non-differential gear lock models “ ” (on) 1. Neutral indicator light “N” All electrical systems are supplied with power. The 2. Reverse indicator light “R” engine can be started.
Page 32
If the warning light does not come on initially when the key is turned to “ ” (on), or if the warning EBU17861 light remains on, have a Yamaha dealer check the Neutral indicator light “ ” electrical circuit. This indicator light comes on when the transmis- sion is in the neutral position.
Page 33
When this occurs, the display will indicate loaded. Reduce the load to specification. The engine may overheat if mud or dirt has an error code (see page 4-6). Have a Yamaha accumulated on the radiator. Gently clean dealer check the self-diagnosis system.
If the steering load is too heavy (i.e., excessive EBU37053 Display unit steering use when the ATV is traveling at a slow speed), the power assist is reduced to protect the EPS motor from overheating. EBU17955 Four-wheel drive indicator light “ ” This indicator light comes on when the drivetrain is set to “4WD”...
Page 35
“km/h”, and the odometer and tripmeter units will segments will flash repeatedly. If this occurs, have switch to miles or kilometers accordingly. a Yamaha dealer check the vehicle. To switch the display units: turn the key to “ ” (off), then hold the select button “SEL” pushed Multi-function display and turn the key to “...
Page 36
The service tripmeter will reset and continue flash. counting after 9999.9 is reached. If this occurs, have a Yamaha dealer check the ve- hicle. Hour meter The hour meter shows the total time the engine...
Yamaha dealer check the vehicle. ECB01181 NOTICE To prevent engine damage, be sure to consult a Yamaha dealer as soon as possible if this oc- curs. 1. Light switch “ /OFF” 2. Engine stop switch “...
Page 39
For differential gear lock models EBU18102 Start switch “ ” Push this switch to crank the engine with the start- er. See the starting instructions on page 6-1 prior to starting the engine. EBU34123 LOCK Light switch “ /OFF” Set this switch to “ ”...
Page 40
In While the override switch is pushed, the segments this case, take the ATV to a Yamaha dealer at the of the speedometer digits will appear as shown in first opportunity.
Page 41
es with the riding speed. You may lose control handle differently. This could distract the oper- and have an accident if you cannot make a ator and increase the risk of losing control and sharp enough turn for the speed you are trav- of causing an accident.
Page 42
The ATV handles differently in four-wheel drive than in differential gear lock in some circum- When the switch is set to “LOCK”, the differen- stances. Changing from four-wheel drive to tial gear lock indicator light will flash until the dif- differential gear lock or vice versa while mov- ferential gear is completely locked or unlocked.
All wheels turn at the same speed when the dif- EBU18325 Speed limiter ferential gear is locked, so it takes more effort to turn the ATV. The effort needed to turn in- creases with the riding speed. You may lose control and have an accident if you cannot make a sharp enough turn for the speed you are traveling.
the adjusting screw in direction (b). Do not The front brake lever is located on the right han- turn the adjusting screw out more than 12 dlebar. To apply the front brake, pull the brake le- mm (0.47 in) or the throttle cable could be ver toward the handlebar grip.
EBU18614 Drive select lever 1. Rear brake lever The brake pedal is located on the right side of the 1. Drive select lever ATV and the rear brake lever is located on the left The drive select lever is used to shift the transmis- handlebar.
of sparks, open flames, or other sources of EBU37980 Fuel tank cap ignition such as the pilot lights of water heat- ers and clothes dryers. 2. Do not overfill the fuel tank. When refueling, be sure to insert the pump nozzle into the fuel tank filler hole.
3. Wipe up any spilled fuel immediately. Recommended fuel: NOTICE: Immediately wipe off spilled fuel Regular unleaded gasoline (Gasohol [E10] with a clean, dry, soft cloth, since fuel may acceptable) deteriorate painted surfaces or plastic Fuel tank capacity: parts. [ECB00982] 14 L (3.7 US gal, 3.1 Imp.gal) 4.
About the recommended fuel EBU34141 Seat If knocking or pinging occurs, try a different brand or higher octane gasoline. To remove the seat For Europe, use RON 95 octane or higher. For Oceania, use RON 91 octane or higher. Gasoline containing ethanol can be used if the ethanol content does not exceed 10% (E10).
To install the seat EBU37061 Storage compartment ECB00131 NOTICE Do not store metal or sharply edged objects, like tools, in the storage compartment. If they must be stored, wrap them in appropriate cushion material to prevent damaging the stor- age compartment. The storage compartment is located under the seat.
EBU18974 Rear carrier Do not exceed the load limit of 80.0 kg (176 lb) for the rear carrier. Do not exceed the maximum load of 240.0 kg (530 lb) for the ATV. EBU1914A Front and rear shock absorbers The spring preload can be adjusted to suit the rid- er’s weight and the riding conditions.
Page 51
1. Spring preload adjusting ring 1. Special wrench 2. Position indicator A special wrench can be obtained at a Yamaha dealer to make this adjustment. 4-21...
EBUM0303 Front spring preload setting: Winch (for Europe) Minimum (soft): Standard: Maximum (hard): Rear spring preload setting: Minimum (soft): Standard: Maximum (hard): 1. Winch 2. Hook 3. Hook strap 4. Fairlead EWBM0041 WARNING To reduce the risk of injury or death, read and follow the Basic Guide to Winching Techniques prior to use.
1. Trailer hitch receiver EBU28972 Trailer hitch (equipped models) This ATV is equipped with a 5 cm (2 in) trailer hitch receiver. Trailer towing equipment can be obtained at a Yamaha dealer. (See page 6-6 for precaution in- formation.) 4-23...
EBU19186 ECB03760 NOTICE Auxiliary DC jack Do not use any single electrical accessory or combination of accessories that require more than the stated capacity at any one time. This may overload the circuit and cause the fuse to blow. When using a winch or other electrical accesso- ries, the power taken from the DC jack must be re- duced accordingly.
Do not use an automotive cigarette lighter or other accessory with a plug that gets hot. The DC jack may be damaged. EBU37291 Winch pre-wiring (for Oceania) This vehicle is equipped with pre-wiring leads for a winch. Consult your Yamaha dealer for details. 4-25...
Do not operate the vehicle if you find any problem. If a problem cannot be corrected by the procedures provided in this manual, have the vehicle inspected by a Yamaha dealer. Before using this vehicle, check the following points:...
Page 57
ITEM ROUTINE PAGE • Check operation. If soft or spongy, have Yamaha dealer bleed hy- draulic system. • Check brake pads for wear, and replace if necessary. Front brake 5-3, 8-40, 8-40, 8-42 • Check brake fluid level in reservoir, and add specified brake fluid to specified level if necessary.
Add oil as necessary. (See page 8-19.) Check that there is no free play in the front EBU19591 brake lever. If there is free play, have a Yamaha Final gear oil dealer check the brake system. Make sure that the final gear oil is at the specified ...
If there is any leakage, the brake system should be checked by a Yamaha dealer. Brake operation Test the brakes at slow speed after starting out to make sure they are working properly.
Page 60
control or rollover. Tire pressure below the minimum specified could also cause the tire to With cargo or trailer: dislodge from the rim under severe driving Front: (Recommended) conditions. [EWB04120] 50.0 kPa (0.500 kgf/cm², 7.3 psi) Rear: (Recommended) OPERATING TIRE PRESSURE (cold): 50.0 kPa (0.500 kgf/cm², 7.3 psi) For Oceania Front: (Minimum)
Page 61
250 kPa (2.5 kgf/cm², 36 psi) This ATV is equipped with tubeless tires and tire Rear air valves. After extensive tests, only the tires list- 250 kPa (2.5 kgf/cm², 36 psi) ed below are approved for this model by Yamaha.
Aftermarket tires and rims The tires and rims that came with your ATV were designed to match the performance capabilities and to provide the best combination of handling, braking, and comfort. Other tires, rims, sizes, and combinations may not be appropriate. EBU19841 Chassis fasteners Make sure that all nuts, bolts and screws are...
See the “Engine break-in” section on page 6-4 the ATV. If there is a control or function you do not prior to operating the engine for the first time. understand, ask your Yamaha dealer. EWB00632 To start the engine WARNING 1.
If the indicator light does not come on, EBU36230 Operating the drive select lever and have a Yamaha dealer check the electrical driving in reverse circuit. 3. Apply the rear brake lever or brake pedal. ECB03330 NOTICE 4. Release the throttle lever, then push the start switch to crank the engine with the starter.
Page 65
reverse, make sure there are no people or ob- stacles behind you. When it is safe to proceed, go slowly. 1. Bring the ATV to a complete stop. 2. Apply the brake pedal. 3. Shift from neutral to reverse or from reverse to park and vice versa by moving the drive se- lect lever along the shift guide.
Vary the speed of the ATV regularly. Do not oper- should come on. If the indicator light does not ate it at one set throttle position. come on, have a Yamaha dealer check the elec- trical circuit. 120–240 km (75–150 mi) or 10–20 hours ...
Yamaha for use on your ATV. Many companies with no connection to Yamaha manufacture parts and accessories or offer other modifications for Yamaha vehicles. Yamaha is not in a position to test the products that these aftermarket compa- nies produce. Therefore, Yamaha can neither en-...
Page 68
Yamaha or modifications not specifically bulky object attached to the handlebars which recommended by Yamaha, even if sold and in- could make steering difficult, an accessory that stalled by a Yamaha dealer. limits your ability to move around on the seat, or one that limits your view.
Page 69
Never exceed the weight limits shown. An over- the weight on the hitch. If you are carrying cargo loaded ATV can be unstable. and towing a trailer, include the tongue weight in the maximum ATV load limit. Load cargo on the carriers as close to the center MAXIMUM LOADING LIMIT ATV loading limit (total weight of rider, car- of the ATV as possible.
RIDE WITH CARE AND GOOD JUDGMENT EBU38771 Get training if you are inexperienced. GETTING TO KNOW YOUR ATV EWB01382 This ATV is for recreation and utility use. This sec- WARNING tion, Riding your ATV, provides general ATV riding Do not operate this ATV or allow anyone else instructions for recreational riding.
Page 72
the time to learn the basic techniques well before This ATV is designed to carry the operator and attempting more difficult maneuvers. Become fa- cargo only – passengers prohibited. miliar with this ATV at slow speeds first, even if you The long seat is to allow the operator to shift posi- are an experienced operator.
Page 73
Apparel Always wear the following to reduce risk of injury in an accident: Approved motorcycle helmet that fits properly Eye protection (goggles, helmet face shield, or protective eyewear) Over-the-ankle boots, gloves, long-sleeved shirt or jacket, and long pants An approved helmet and other personal protective equipment can reduce the severity of injuries in an accident.
Page 74
1. Protective clothing Pre-operation checks 2. Goggles Always inspect your ATV each time you use it to 3. Gloves make sure the ATV is in safe operating condition. 4. Boots 5. Helmet Perform the pre-operation checks listed on page 5-1. Always follow the inspection and mainte- Do not operate after or while consuming alco- nance procedures and schedules described in the hol or drugs.
Page 75
Do not exceed the maximum loading limits fully opening, even when the throttle lever is pushed to the maximum. Turning in the adjusting for the vehicle (see “MAXIMUM LOADING screw limits the maximum engine power available LIMIT” in this section or vehicle labeling). ...
Page 76
During operation MAXIMUM LOADING LIMIT Always keep your feet on the footboards during ATV loading limit (total weight of cargo, rid- operation; otherwise, they may contact the rear er, accessories, and tongue): wheels. WARNING! Removing even one hand or 240.0 kg (530 lb) foot can reduce your ability to control the ATV Front carrier: or could cause you to lose your balance and...
Page 77
ATV should during operation or after leaving the ATV, do not be genuine Yamaha or equivalent components let brush, grass and other materials collect under designed for use on this ATV and should be in- the vehicle, near the muffler or exhaust pipe, or stalled and used according to instructions.
To prevent burns, avoid touching the exhaust sys- BE CAREFUL WHERE YOU RIDE tem. Park the ATV in a place where pedestrians or This ATV is designed for use on unpaved surfaces children are not likely to touch it. only. WARNING! Paved surfaces may seriously affect handling and control of the ATV, and may cause the ATV to go out of control.
Page 79
know your country’s laws and regulations before ful when operating on unfamiliar terrain. Al- you ride on unpaved public streets or roads. Do ways be alert to changing terrain conditions not ride on any paved public street, road or motor- when operating the ATV.
Page 80
terrain could cause loss of traction or ATV con- trol, which could result in an accident, includ- ing an overturn. [EWB01542] Do not ride in areas posted “no trespassing”. Do not ride on private property without getting permission. When riding in an area where you might not easily be seen, such as desert terrain, mount a caution flag on the ATV.
Select a large, flat, unpaved area to become famil- ECB00252 NOTICE iar with your ATV. Make sure that this area is free of obstacles and other riders. You should practice Do not shift from low-range to high-range or control of the throttle, brakes, shifting procedures, vice versa without coming to a complete stop.
As you approach a curve, slow down and begin to may continue to go straight. If the ATV doesn’t turn the handlebars in the desired direction. As turn, come to a stop and then practice the proce- you do so, put your weight on the footboard to the dure again.
Page 83
Never operate the ATV on hills too steep for the ATV or for your abilities. The ATV can overturn more easily on extremely steep hills than on level surfaces or small hills. Always check the terrain carefully before you start up any hill.
Page 84
Do not attempt to climb hills until you have mas- If you are climbing a hill and you find that you have tered basic maneuvers on flat ground. Always not properly judged your ability to make it to the check the terrain carefully before attempting any top, you should turn the ATV around while you still hill.
Always check the terrain carefully before you around and remount, following the procedure de- scribed in the Owner’s Manual. WARNING! Stall- start down any hill. Never operate the ATV on hills too steep for ing, rolling backwards improperly dismounting while climbing a hill could result in the ATV or for your abilities.
Use caution while descending a hill with loose or slippery surfaces. Braking ability and traction may be adversely affected by these surfaces. Improper braking may also cause a loss of traction. When this ATV is in “4WD”, all wheels (front and rear) are interconnected by the drive train.
Shift your weight to the uphill side of the ATV. Never attempt to turn the ATV around on any hill until you have mastered the turning tech- nique as described in the Owner’s Manual on level ground. Be very careful when turning on any hill.
Page 88
The ATV can be used to cross slow moving, shal- braking ability. WARNING! Wet brakes may have low water of up to a maximum of 35 cm (14 in) in reduced stopping ability, which could cause depth. Before entering the water, choose your loss of control.
1. Air filter case check hose 1. V-belt case drain plug RIDING OVER ROUGH TERRAIN EWB01652 WARNING Riding improperly over obstacles could cause loss of control or a collision. Before operating in a new area, check for obstacles. Never at- tempt to ride over large obstacles, such as large rocks or fallen trees.
accident. Be sure to keep your feet firmly mounted To reduce the tendency for the front wheels to on the footboards at all times. Avoid jumping the slide in loose or slippery conditions, positioning ATV as loss of control and damage to the ATV may your weight over the front wheels will sometimes result.
WHAT TO DO... If your ATV doesn’t turn when you want it to: Bring the ATV to a stop and practice the turning maneuvers again. Be sure you are putting your weight on the footboard to the outside of the turn.
Page 92
If your ATV is traversing a sloping surface: Be sure to ride with your weight positioned to- wards the uphill side of the ATV to maintain proper balance. If the ATV starts to tip, steer down the hill (if there are no obstacles in your way) to regain balance.
The intervals given in the periodic maintenance vice or while using the vehicle. If you are not fa- charts should be considered as a general guide miliar with vehicle service, have a Yamaha under normal riding conditions. However, DE- dealer perform the service.
If you do not have the tools or experience required Be sure to put the Owner’s Manual and the low- for a particular job, have a Yamaha dealer perform pressure tire gauge in the plastic bag and always it for you.
For odometer or hour meter-equipped vehicles, follow the month maintenance interval if the ATV isn’t ridden for the stated distance or engine operating hours. Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills.
Page 96
INITIAL EVERY month Whichev- CHECK OR MAINTENANCE ITEM er comes 1300 2500 2500 5000 km (mi) first (150) (800) (1600) (1600) (3200) hours √ √ √ Spark arrester • Clean. • Check the air cut-off valve, reed valve, and hose Air induction sys- for damage.
For odometer or hour meter-equipped vehicles, follow the month maintenance interval if the ATV isn’t ridden for the stated distance or engine operating hours. Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills.
Page 98
INITIAL EVERY month Whichev- CHECK OR MAINTENANCE ITEM er comes 1300 2500 2500 5000 km (mi) first (150) (800) (1600) (1600) (3200) hours • Check operation and correct if necessary. √ √ √ √ √ • Check brake lever and pedal free play, and adjust if necessary.
Page 99
INITIAL EVERY month Whichev- CHECK OR MAINTENANCE ITEM er comes 1300 2500 2500 5000 km (mi) first (150) (800) (1600) (1600) (3200) hours • Make sure that all nuts, bolts, and screws are √ √ √ √ √ Chassis fasteners properly tightened.
Page 100
INITIAL EVERY month Whichev- CHECK OR MAINTENANCE ITEM er comes 1300 2500 2500 5000 km (mi) first (150) (800) (1600) (1600) (3200) hours • Change. √ √ Differential gear oil • Check ATV for oil leakage, and correct if neces- sary.
Page 101
EBU28392 Some maintenance items need more frequent service if you are riding in unusually wet, dusty, sandy or muddy areas, or at full-throttle. Hydraulic brake service • Regularly check and, if necessary, correct the brake fluid level. • Every two years replace the internal components of the brake master cylinder and calipers, and change the brake fluid.
EBU23091 Removing and installing panels The panels shown need to be removed to perform some of the maintenance jobs described in this chapter. Refer to this section each time a panel needs to be removed and installed. 1. Panel C 2.
Page 103
EBU27605 Panel A When removing or installing panel A, the fuel tank cap must be removed. NOTICE: Make sure that no foreign material enters the fuel tank. [ECB01052] To remove the panel 1. Remove the seat. (See page 4-18.) 2. Remove the bolts and quick fasteners. 1.
Page 104
4. Install the fuel tank cap. To remove a panel 1. Remove panel A. To install the panel 2. Pull the panel upward to release the tabs as 1. Remove the fuel tank cap. shown. 2. Place the panel over the fuel tank filler tube, and then install the fuel tank cap.
Page 105
To install a panel Panel D 1. Push the panel to secure the tabs. To remove the panel Remove the bolts, and then take the panel off. 1. Bolt 2. Panel D To install the panel Place the panel in the original position, and then install the bolts.
Page 106
Panel F To remove the panel 1. Remove panels B and C. 2. Remove the cover. For handlebar-mounted light cover equipped models: Remove the handlebar- mounted light cover. (See page 8-59.) For handlebar-mounted light cover non- equipped models: Remove the handlebar cover.
Page 107
4. Remove the carrier bolts under the fenders, and then take the carrier off. 1. Handlebar cover 3. Remove the carrier top bolts. 1. Carrier bolt (under the fenders) 1. Carrier bolt (top) 2. Panel F 1. Carrier bolt (under the fenders) 8-15...
Page 108
5. Remove the quick fasteners. To install the panel 1. Connect the coupler, and then place the pan- el in the original position. 1. Quick fastener 6. Lift up the panel and disconnect the coupler. 2. Install the quick fasteners. 3.
5. Install the cover. For handlebar-mounted light cover equipped models: Install the handlebar- mounted light cover. For handlebar-mounted light cover non- equipped models: Install the handlebar cover. 6. Install the panels. EBU23215 Checking the spark plug The spark plug is an important engine component, 1.
Page 110
If the spark plug shows a distinctly different color, the engine could be operating improperly. Do not attempt to diagnose such problems yourself. In- stead, have a Yamaha dealer check the ATV. 1. Spark plug gap 2. Check the spark plug for electrode erosion...
Tightening torque: Spark plug: If the engine was started before checking the oil 18 N·m (1.8 kgf·m, 13 lb·ft) level, warm up the engine, and then wait at least ten minutes until the oil settles for an accurate reading. If a torque wrench is not available when installing 4.
Page 112
7. Check the filler cap O-ring for damage, and replace it if necessary. The engine oil should be between the tip of the 8. Install the engine oil filler cap and the panel. dipstick and the maximum level mark. To change the engine oil (and replace the oil fil- ter cartridge) 1.
Page 113
1. Engine oil drain bolt 1. Oil filter cartridge 2. Gasket Skip steps 6–10 if the oil filter cartridge is not be- ing replaced. 6. Remove panels C and D. (See page 8-10.) 7. Remove the oil filter cartridge with an oil filter wrench.
Page 114
An oil filter wrench is available at a nearby Yamaha dealer. 8. Apply a thin coat of engine oil to the O-ring of the new oil filter cartridge. 1. Torque wrench Tightening torque: Oil filter cartridge: 17 N·m (1.7 kgf·m, 13 lb·ft) 10.
EBU38620 Why Yamalube Be sure to wipe off spilled oil on any parts after the YAMALUBE oil is a Genuine YAMAHA Part born of engine and exhaust system have cooled down. the engineers’ passion and belief that engine oil is an important liquid engine component.
The final gear case must be checked for oil leak- age before each ride. If any leakage is found, have 1. Final gear oil filler bolt a Yamaha dealer check and repair the ATV. In ad- 2. Gasket dition, the final gear oil level must be checked and 3.
Page 117
Tightening torque: Final gear oil filler bolt: 22 N·m (2.2 kgf·m, 16 lb·ft) To change the final gear oil 1. Park the ATV on a level surface. 2. Remove the final gear case guard by remov- ing the bolts. 1. Final gear oil drain bolt 2.
Page 118
10. Install the final gear case guard by installing the bolts, and then tightening them to the Recommended final gear oil: specified torque. Yamaha Friction Modified Shaft Drive Gear Tightening torque: Oil quantity: Final gear case guard bolt: 0.38 L (0.40 US qt, 0.33 Imp.qt) 8 N·m (0.8 kgf·m, 5.9 lb·ft)
Oil or SAE 80 API GL-4 Hypoid gear oil leakage before each ride. If any leakage is found, Oil quantity: have a Yamaha dealer check and repair the ATV. 0.35 L (0.37 US qt, 0.31 Imp.qt) In addition, the differential gear oil must be...
Page 120
4. Install the drain bolt and its new gasket, and Recommended differential gear oil: then tighten the bolt to the specified torque. Yamaha Friction Modified Plus Shaft Drive Oil (Part No.: ACC-SHAFT-PL-32) or SAE 80 Tightening torque: API GL-4 Hypoid gear oil...
Tightening torque: Differential gear oil filler bolt: If genuine Yamaha coolant is not available, use an 23 N·m (2.3 kgf·m, 17 lb·ft) ethylene glycol antifreeze containing corrosion in- hibitors for aluminum engines and mix with dis- 8. Check the differential gear case for oil leak- tilled water at a 1:1 ratio.
Page 122
If WARNING! Remove only the coolant res- water has been added to the coolant, have ervoir cap. Never attempt to remove the a Yamaha dealer check the antifreeze con- radiator cap when the engine is hot. [EWB02672] 8-30...
Page 123
tent of the coolant as soon as possible, otherwise the effectiveness of the coolant will be reduced. [ECB01012] EBU37131 To change the coolant EWB01891 WARNING Wait for the engine and radiator to cool before removing the radiator cap. You could be burned by hot fluid and steam blown out under pressure.
Page 124
1. Coolant drain bolt 1. Coolant reservoir hose 2. Gasket 8. After draining the coolant, thoroughly flush 3. Trough the cooling system with clean tap water. 6. Remove the coolant reservoir cap. 9. Install the coolant drain bolt and its new gas- 7.
12. Pour the recommended coolant into the radi- ator until it is full, and then install the radiator Replace the air filter elements if damaged. cap. Service the air filter more frequently if you often 13. Start the engine, let it idle for several minutes, ride in wet or dusty areas.
Page 126
1. Air filter case cover holder 1. Main air filter assembly 2. Air filter case cover 4. Pull out the main air filter assembly and sub air filter element. 1. Sub air filter element 8-34...
Page 127
5. Pull off the lock plate from the main air filter 7. Squeeze out the excess moisture, and let dry. NOTICE: Do not twist the sponge material assembly, and then remove the air filter ele- ment (sponge material) from the frame. when squeezing it.
12. Install the air filter case cover by hooking the holders onto the cover. NOTICE: Make sure that the air filter element is properly seated in the air filter case. Never operate the en- gine with the air filter element removed. Doing so would allow unfiltered air to enter the engine, causing rapid engine wear and possible engine damage.
If dust or water collects in the V-belt cooling duct check hose, remove the hose and clean it. If water drains from the V-belt case after removing the plug, have a Yamaha dealer check the ATV as the water may affect other engine parts. 8-37...
EBU29705 Adjusting the throttle lever free play For non-differential gear lock models 1. V-belt case drain plug 1. Throttle lever free play 2. Rubber cover 3. Locknut 4. Throttle lever free play adjusting bolt 8-38...
The valve clearance changes with use, resulting in improper air-fuel mixture and/or engine noise. To prevent this from occurring, the valve clearance must be adjusted by a Yamaha dealer at the inter- 1. Throttle lever free play 2. Rubber cover vals specified in the periodic maintenance and lu- 3.
EBU30321 Front brake pads Rear brake friction plates The rear brake friction plates must be checked and, if necessary, replaced by a Yamaha dealer at the intervals specified in the periodic maintenance and lubrication chart. EBU29845 Checking the brake fluid level Before riding, check that the brake fluid is above the minimum level mark.
Page 133
Therefore, be sure to check the brake pads for wear and the brake system for leakage. If the brake fluid level suddenly goes down, have a Yamaha dealer check the brake sys- tem before further riding. EWB02721 WARNING Improper maintenance can result in loss of braking ability.
Brake hoses: Replace every four years. 1. No brake lever free play There should be no free play at the brake lever end. If there is free play, have a Yamaha dealer in- spect the brake system. EBU30348 Adjusting the rear brake lever and...
Page 135
Adjusting the brake lever free play 1. Locknut 2. Distance A 1. Brake lever free play 3. Brake lever free play adjusting bolt Brake lever free play: 2. To increase the brake lever free play, turn the 10.0 mm (0.39 in) brake lever free play adjusting bolt in direction (a).
Page 136
22 mm (0.87 in), adjust the brake lever free play at the brake lever again. If distance A 3. Fully turn the adjusting bolt in direction (a) to exceeds 12.7 mm (0.50 in), have a Yamaha loosen the brake cable. dealer check the vehicle.
Page 137
Brake pedal height: 80.0 mm (3.15 in) Measure the brake pedal height and adjust if nec- essary. 1. Remove the footboard by removing the quick fasteners, bolts, and nuts. 1. Locknut 2. Adjusting bolt 3. Turn the adjusting bolt in or out until the brake pedal height is within the specified limits.
Page 138
1. Footboard bolt A Tightening torques: 2. Footboard bolt B Footboard bolt A: 3. Quick fastener 4.0 N·m (0.40 kgf·m, 3.0 lb·ft) Footboard bolt B: 8 N·m (0.8 kgf·m, 5.9 lb·ft) Tighten the footboard bolts in the order shown. 8-46...
The rear brake light switch for the brake pedal can be adjusted as follows, but the other brake light switches should be adjusted by a Yamaha dealer. Turn the rear brake light switch adjusting nut while holding the brake light switch in place. To make the brake light come on earlier, turn the adjusting nut in direction (a).
EBU28712 essary. If a cable is damaged or does not move Checking and lubricating the front and smoothly, have a Yamaha dealer check or replace rear brake levers The operation of the front and rear brake levers should be checked before each ride, and the lever Recommended lubricant: pivots should be lubricated if necessary.
Front brake lever EBU28872 Checking and lubricating the brake pedal The operation of the brake pedal should be checked before each ride, and the pedal pivot should be lubricated if necessary. Recommended lubricant: Lithium-soap-based grease Rear brake lever EBU24964 Checking the wheel hub bearings The front and rear wheel hub bearings must be checked at the intervals specified in the periodic maintenance and lubrication chart.
Yamaha dealer check the wheel hub bearings. 1. Grease nipple For parts equipped with a grease nipple, use a EBU24974 Lubricating the drive shaft universal grease gun.
EBU25095 Recommended lubricant: Lubricating the steering shaft Lithium-soap-based grease The steering shaft must be lubricated by a Yamaha dealer at the intervals specified in the pe- riodic maintenance and lubrication chart. Recommended lubricant: Lithium-soap-based grease 8-52...
Wear gloves and eye protection in a ventilated area away from sparks and open flames. Wash hands after handling. It is recommended to have the battery serviced by a Yamaha dealer. 8-53...
Page 146
2. Remove the battery holding plate by remov- EWB02161 WARNING ing the bolts. Battery electrolyte is poisonous and danger- ous, as it contains sulfuric acid, which can cause severe burns. Avoid contact with skin, eyes or clothing. Always shield your eyes when working near batteries.
Page 147
ECB00622 ECB00942 NOTICE NOTICE Always keep the battery charged. Storing the Never attempt to open the battery or remove the battery cell seals, as this would permanent- battery in a discharged state for an extended ly damage the battery. period of time will cause permanent battery damage.
Page 148
1. Positive battery lead (red) 1. Bolt 2. Negative battery lead (black) 2. Battery holding plate 3. Guide 3. Negative battery lead (black) Make sure the positive battery lead is routed be- Make sure the negative battery lead is routed un- hind the guides.
EBU30806 Replacing a fuse 3 4 5 1. Auxiliary DC jack fuse 2. Four-wheel-drive motor fuse 1. Fuel injection system spare fuse 3. Ignition fuse 2. Fuel injection system fuse 4. Radiator fan motor fuse 3. Main fuse 5. Signaling system fuse 4.
Page 150
10.0 A EPS fuse: 40.0 A (YFM450FWBD, YFM45KPAL) 4. Turn on the main switch, start the engine, and then turn on the circuit in question. 5. If the fuse immediately blows again, have a Yamaha dealer check the vehicle. 8-58...
EBU34223 Replacing a headlight bulb If a headlight bulb burns out, replace it with the specified bulb as follows. Left and right headlight bulbs 1. Remove the cover at the rear of the headlight by pulling it off. 1. Bulb cover 3.
Page 152
4. Remove the burnt-out bulb. 7. Install the bulb cover and the cover at the rear 5. Place a new bulb into position. NOTICE: Do of the headlight. NOTICE: Make sure the not touch the glass part of the bulb. Oil bulb cover is securely fitted over the sock- from your fingers or other contamination et and seated properly.
Page 153
4. Remove the burnt-out bulb. 5. Place a new bulb into position. NOTICE: Do not touch the glass part of the bulb. Oil from your fingers or other contamination will adversely affect the transparency of the glass, luminosity of the bulb, and bulb life.
EBU25553 Adjusting a headlight beam ECB00691 NOTICE It is advisable to have a Yamaha dealer make this adjustment. To raise a headlight beam, turn the headlight beam adjusting screw in direction (a). 1. Handlebar-mounted light beam adjusting screw To lower a headlight beam, turn the adjusting screw in direction (b).
EBU25615 Replacing the brake/tail light bulb If the brake/tail light bulb burns out, replace it as follows. 1. Remove the brake/tail light bulb holder (to- gether with the bulb) by turning it counter- clockwise. 1. Brake/tail light bulb 3. Insert a new bulb into the bulb holder, push it in, and then turn it clockwise until it stops.
1. Wheel nut 1. Arrow mark 2. Forward rotating direction 3. Elevate the ATV and place a suitable stand 3. Wheel nut under the frame. 4. Remove the nuts from the wheel. 5. Remove the wheel. For models with tapered nuts: be sure to install the nuts with their tapered side towards the wheel.
The following troubleshooting charts represent quick and easy procedures for checking these vi- tal systems yourself. However, should your ATV require any repair, take it to a Yamaha dealer, whose skilled technicians have the necessary 1. Tapered nut tools, experience, and know-how to service the 2.
Remove the spark plug and check the electrodes. The engine does not start. Have a Yamaha dealer check the ATV. Check the compression. 4. Compression The engine does not start. There is compression.
Page 159
Start the engine. If the engine overheats again, have a The coolant level Yamaha dealer check and repair the cooling system. is OK. Tap water can be used in an emergency. Change to the recommended coolant as soon as possible.
EBU25861 CLEANING AND STORAGE and deterioration of wheel bearings, EBU25882 Cleaning brakes, transmission seals and electrical Frequent, thorough cleaning of your ATV will not devices. Many expensive repair bills have only enhance its appearance but will improve its resulted from improper high-pressure de- general performance and extend the useful life of tergent applications such as those avail- many components.
4. Perform the following steps to protect the en- EBU27264 Storage gine from internal corrosion. a. Remove the spark plug cap and spark Short-term plug. Always store your ATV in a cool, dry place and, if b. Pour a teaspoonful of engine oil into the necessary, protect it against dust with a porous spark plug bore.
Page 162
8. Remove the battery and fully charge it. (See page 8-53.)
EBU25964 SPECIFICATIONS Weight: EBU38810 Curb weight: 289.0 kg (637 lb) (YFM45KDXL) 295.0 kg (650 lb) (YFM45KPAL) The 4-digit model type code can be confirmed by 301.4 kg (664 lb) (YFM450FWB) 307.4 kg (678 lb) (BB5M) checking the model label. (See page 11-1.) 308.3 kg (680 lb) (B5R1/B5R3) 313.5 kg (691 lb) (B5R2) Dimensions:...
Page 164
2.40 L (2.54 US qt, 2.11 Imp.qt) Lubrication system: Final gear oil: Wet sump Type: Engine oil: Yamaha Friction Modified Shaft Drive Gear Oil Recommended brand: Quantity: 0.38 L (0.40 US qt, 0.33 Imp.qt) SAE viscosity grades: 5W-30, 10W-30, 10W-40, 15W-40, 20W-40, 20W-50...
Page 165
BB51 00 ACC-SHAFT-PL-32) or SAE 80 API GL-4 Hypoid gear oil Spark plug (s): (B5R1/B5R2/B5R3) Manufacturer/model: Yamaha Friction Modified Shaft Drive Gear Oil or SAE 80 NGK/DR7EA API GL-4 Hypoid gear oil Spark plug gap: (BJ5H/BB5R/BJ5D/BJ5E/BB5M) 0.6–0.7 mm (0.024–0.028 in)
Page 167
Shock absorber: Brake/tail light: Gas-hydraulic damper 21.0 W/5.0 W Wheel travel: Meter lighting: 171 mm (6.8 in) Rear suspension: Neutral indicator light: Type: Reverse indicator light: Double wishbone Spring: Coolant temperature warning light: Coil spring Shock absorber: Park indicator light: Gas-hydraulic damper Wheel travel: Four-wheel-drive indicator light:...
Page 168
Fuel injection system fuse: EBU38670 10.0 A Four-wheel-drive motor fuse: CO2 emissions levels statement (for Europe) 10.0 A (B5R1/B5R2/B5R3) This CO2 measurement results from testing over a 3.0 A (BJ5H/BB5R/BJ5D/BJ5E/BB5M) fixed test cycle under laboratory conditions a(n) Radiator fan motor fuse: (parent) engine representative of the engine type 20.0 A EPS fuse:...
EBU26003 CONSUMER INFORMATION EBU28204 Identification numbers Record the vehicle identification number and model label information in the spaces provided below. VEHICLE IDENTIFICATION NUMBER: MODEL LABEL INFORMATION: 1. Vehicle identification number (front left side) EBU26052 Model label The model label is affixed at the location shown. The model label information is used to identify EBU26032 Vehicle identification number...
Page 170
The four-digit string is the model type code. engines of non-road mobile machinery. Your Yamaha engine was designed and tested to EBU38690 give an optimal blend of performance without ex- Emissions Certification label (for Europe) cessive emissions.
INDEX Differential gear oil ............5-3 Differential gear oil, changing ........8-27 Accessories and loading ..........6-5 Display unit ..............4-4 Accessories, DC jack ........... 4-24 Drive select lever ............4-15 Air filter, cleaning ............8-33 Drive select lever and driving in reverse ......6-2 Axle boots ..............
Page 172
Instruments, lights and switches ........5-7 Shock absorber assemblies, adjusting the front and rear ................4-20 Spark arrester, cleaning ..........8-36 Label locations ...............1-1 Spark plug, checking ........... 8-17 Light switch ..............4-9 Specifications .............. 10-1 Speed limiter ..............4-13 Main switch ..............4-1 Stabilizer bushes, checking .........
Page 174
EBU26173 WARNING Improper ATV use can result in SEVERE INJURY or DEATH. NEVER USE ALWAYS USE NEVER USE NEVER CARRY AN APPROVED PASSENGERS WITH DRUGS ON PAVED HELMET AND OR ALCOHOL ROADS PROTECTIVE GEAR NEVER ALWAYS operate: • without proper training or instruction. •...